Fantasy Forecaster: Week 21

On tap: Baseball's final month (plus three days) is here, and with it comes the heat of the pennant races and expanded, 40-man rosters granting noncontenders opportunities to audition youngsters and the playoffs in ESPN standard leagues. This, fantasy's Week 21, kicks off the first of a two-week playoffs semifinal, a matchup that concludes at the end of Week 22 on Sunday, Sept. 16.